docs(README): clarify the notice description of allowRestart
diff --git a/README.md b/README.md
index 2b5ea5b..d1898c5 100644
--- a/README.md
+++ b/README.md
@@ -316,7 +316,7 @@
If you want to enlarge your name service cluster. Modify your name service CR file ```rocketmq_v1alpha1_nameservice_cr.yaml```, increase the field ```size``` to the number you want, for example, from ```size: 1``` to ```size: 2```.
-> Notice: if your broker image version is 4.5.0 or earlier, you need to make sure that ```allowRestart: true``` is set in the broker CR file to enable rolling restart policy. If not, configure it to true and run ```kubectl apply -f example/rocketmq_v1alpha1_broker_cr.yaml``` to apply the new config.
+> Notice: if your broker image version is 4.5.0 or earlier, you need to make sure that ```allowRestart: true``` is set in the broker CR file to enable rolling restart policy. If ```allowRestart: false```, configure it to ```allowRestart: true``` and run ```kubectl apply -f example/rocketmq_v1alpha1_broker_cr.yaml``` to apply the new config.
After configuring the ```size``` fields, simply run
```
